Original one-of-a-kind silver bangle bracelet NWOT

A friend of mine made these and I've been selling them to support our local dog park! She said that these are silver but I don't know the purity of them, I'm assuming they're sterling silver. They can tarnish so expect to polish them once in a while. Then they really gleam! Thick silver, rigid but bendable. Onyx beads are probably stone, but may be plastic, I can't tell for sure. Almost 8.25" in length, including clasp.